Groups and FieldsSuperchallengeGalois Theory ShareGalois Theory · Superchallenge problemGal(Q(ζ15)/Q)≅U(15)\operatorname{Gal}(\mathbb Q(\zeta_{15})/\mathbb Q)\cong U(15)Gal(Q(ζ15)/Q)≅U(15). How many intermediate fields are there, counting both ends?Check Show answer Walk through it step by step Practice more like this Review this concept